linux-kernel - Re: [RFC 2/5] cxl: Rename CXL_DECODER

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Message-ID: <20241001030156.yflpw3a2cwdgdyqt@offworld>
Date: Mon, 30 Sep 2024 20:01:56 -0700
From: Davidlohr Bueso <dave@...olabs.net>
To: Huang Ying <ying.huang@...el.com>
Cc: Dan Williams <dan.j.williams@...el.com>,
	Dave Jiang <dave.jiang@...el.com>, linux-cxl@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Alison Schofield <alison.schofield@...el.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	Ira Weiny <ira.weiny@...el.com>,
	Alejandro Lucero <alucerop@....com>
Subject: Re: [RFC 2/5] cxl: Rename CXL_DECODER_HOSTONLYMEM/DEVMEM

On Wed, 25 Sep 2024, Huang Ying wrote:

>Previously, CXL type3 devices (memory expanders) use hostonly
>coherence (HDM-H), while CXL type2 devices (accelerators) use dev
>coherence (HDM-D).  So the target device type of a cxl decoder is
>named as CXL_DECODER_HOSTONLYMEM for type3 devices and
>CXL_DECODER_DEVMEM for type2 devices.  However, this isn't true
>anymore.  CXL type3 devices can use dev coherence + back
>invalidation (HDM-DB) too.
>
>To avoid confusing between the device type and coherence, in this
>patch, CXL_DECODER_HOSTONLYMEM/DEVMEM is renamed to
>CXL_DECODER_EXPANDER/ACCEL.
>
>No functionality change is expected in this patch.

Reviewed-by: Davidlohr Bueso <dave@...olabs.net>

>Signed-off-by: "Huang, Ying" <ying.huang@...el.com>
>Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>
>Cc: Dan Williams <dan.j.williams@...el.com>
>Cc: Davidlohr Bueso <dave@...olabs.net>
>Cc: Jonathan Cameron <jonathan.cameron@...wei.com>
>Cc: Dave Jiang <dave.jiang@...el.com>
>Cc: Alison Schofield <alison.schofield@...el.com>
>Cc: Vishal Verma <vishal.l.verma@...el.com>
>Cc: Ira Weiny <ira.weiny@...el.com>
>Cc: Alejandro Lucero <alucerop@....com>